This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 7 |
| 2 | 29 |
| 3 | 92 |
| 4 | 247 |
| 5 | 591 |
| 6 | 1300 |
| 7 | 2683 |
| 8 | 5270 |
| 9 | 9955 |
| 10 | 18228 |
| 11 | 32551 |
| 12 | 56967 |
| 13 | 98086 |
| 14 | 166681 |
| 15 | 280271 |
| 16 | 467301 |
| 17 | 773906 |
| 18 | 1274856 |
| 19 | 2091266 |
| 20 | 3419252 |
| 21 | 5576298 |
| 22 | 9076280 |
| 23 | 14750858 |
| 24 | 23945893 |
| 25 | 38839257 |
| 26 | 62955061 |
| 27 | 101995694 |